Conveners
Spin/EIC Physics: (1)
- Kenneth Barish (UC Riverside)
Understanding the internal spin structure of the nucleon remains a challenge in strong interaction physics. The unique capability of RHIC to provide both longitudinally and transversely polarized hadronic collisions at various energies opened new avenues in studying the internal structure of the proton with unprecedented depth and precision. Significant progress has been made in the last few...
Parton saturation is one of the most intriguing phenomena in the high energy nuclear physics research frontier, especially in the upcoming era of the Electron-Ion Collider (EIC). The lepton-jet correlation in deep inelastic scattering provides us with a new gateway to the parton saturation at the EIC. In particular, we demonstrate that azimuthal angle anisotropies of the lepton-jet correlation...
The gluon distribution function exhibits a rapid increase when the momentum fraction $x$ decreases. However, the total scattering cross section cannot grow beyond a certain limit due to unitarity constraints, which requires the increase of gluon density to be tamped. Gluon recombination under the color glass condensate (CGC) framework provides a possible solution. Therefore, discoveries of...
Luminosity is an essential quantity to measure the cross section of any process. At the Electron Ion Collider (EIC), it will be measured using the Bethe-Heitler process in which a real photon is radiated in the electron-ion (p or A) scattering: e + p(A) → e + p(A) + Ɣ. The cross section is very large with respect to DIS and can be precisely calculated in leading-order QED, as was done by...
The proposed Electron-Ion Collider (EIC) will utilize high-luminosity high-energy electron+proton ($e+p$) and electron+nucleus ($e+A$) collisions to solve several fundamental questions including searching for gluon saturation and studying the proton/nuclear structure. Due to their high masses ($M_{c,b} > \Lambda_{QCD}$), heavy quarks do not transfer into other quarks or gluons once they are...
An upgrade to the STAR detector system at forward rapidities has been completed before RHIC RUN 2022 and used for data collection. It consists of the Forward Tracking System (FTS) and the Forward Calorimeter System (FCS). The Forward Tracking System is composed of a Silicon Tracker and a small-strip Thin Gap Chamber Tracker. The Forward Calorimeter System contains an Electromagnetic...
